JP2836513B2 - Method and apparatus for winding a wound ball - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for manufacturing a wound ball such as a wound golf ball in which a cover is covered with a wound core in which a rubber thread is wound around a core ball, and the thread rubber is wound around the core ball. More specifically, the present invention relates to a bobbin winding method and a bobbin winding device for obtaining a bobbin core. When winding a bobbin rubber around a core ball, an operation of fixing the winding start end of the bobbin rubber to the core ball is performed easily and reliably. TECHNICAL FIELD The present invention relates to a thread wound ball winding method capable of completely automating a thread rubber winding operation, and a thread wound ball winding apparatus for automatically performing a thread rubber winding operation by the thread winding method.

[0002]

2. Description of the Related Art Conventionally, a wound golf ball has a core ball (liquid center) in which a liquid or paste-like liquid material is filled in a rubber bag (center bag) or a core ball made of solid rubber (solid center). Is wound around a thread rubber to obtain a wound core, and the wound core is covered with a cover.

[0003] In this case, as a method of winding the thread rubber around the core ball (center), the core ball is held between a plurality of rotatable thread winding rollers, and the thread rubber is supplied to the surface of the core ball while supplying the thread rubber. A method of winding thread rubber around the core ball by driving and rotating at least one of the core balls to rotate the core ball is generally employed. At the start of winding, it is necessary to fix the winding start end of the thread rubber to the core ball. As a fixing method, the following methods are conventionally known.

(1) A rubber thread is wound around the core ball two or three times,
A method in which the winding start end of the rubber thread is tied to the core ball by sandwiching the winding start end between the thread rubber wound at this time and the surface of the core ball. (2) A method in which the winding start end is arranged on the surface of the core sphere, and an adhesive is dropped on the surface to fix the winding start end to the surface of the core sphere (Japanese Patent Publication No. 61-49985). (3) When winding the thread rubber around the liquid center, a method is adopted in which the liquid center is frozen and the thread rubber is wound around the liquid center. At this time, the winding start end is wound on the surface of the frozen liquid center. A method of fixing the starting end of the winding to a frozen liquid center by disposing the cooling liquid and solidifying it by cooling (JP-A-51-126470).

[0005]

However, these methods of fixing the thread rubber winding start end have the following problems. That is, the method of (1) for binding the thread rubber to the core ball is currently performed manually because automation is extremely difficult, and the manual binding work is also complicated and requires a considerable amount of time. In short, this contributes to lowering the production efficiency of the wound golf ball.

Further, the method using the adhesive of the above (2) is as follows:
It takes time to dry and cure the adhesive after dropping it,
Adhesives make it easy for foreign matter to adhere, the adhesive makes it easy to contaminate the thread winding device, and makes maintenance of the device complicated.In the case of a liquid center, the thread is frozen and the thread rubber is wound, so that bonding is performed. The agent does not work well and cannot be applied, and the adhesive portion remains, which affects the performance of the golf ball.

Further, the method of cooling and solidifying the water in the above (3) requires a long time for solidifying the water, causes rust and dew condensation on the device, and the water adversely affects the peg.
There are problems such as being applicable only to liquid centers.

As described above, the conventional thread winding method has various problems when fixing the winding start end of the thread rubber to the core ball, and can sufficiently satisfy the manufacturing efficiency and the quality reliability of the product. is not. Therefore, it is desired to develop a thread winding method capable of solving these problems in the thread winding step and efficiently and reliably obtaining a high-quality thread-wound golf ball.

The present invention has been made in view of the above circumstances, and can easily and reliably fix the winding start end of thread rubber to a core ball and wind the thread rubber around the core ball. It is an object of the present invention to provide a wound ball winding method capable of achieving complete automation of the winding process without causing the occurrence, and a wound ball winding apparatus that automatically performs a winding operation of thread rubber by the wound method. .

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for manufacturing a wound ball in which a core is formed by winding a thread rubber around a core ball and a cover is covered with the thread rubber. A bobbin winding method for winding the bobbin core to obtain the bobbin core,
The core ball is gripped by a plurality of gripping claws, and the core ball is held between a plurality of rotatable winding rollers in a state of being separated from each of the winding rollers by a predetermined distance. Is fixed by pressing with a holding claw, and in this state, the core ball is rotated by at least one rotation together with the gripping claw and the holding claw, whereby one or more turns of thread rubber are wound from above the gripping claw and the holding claw. Winding, and then pressing the respective bobbin rollers onto the surface of the core ball from above the rubber thread while avoiding the gripping claws and holding claws, holding the core ball with each bobbin roller and winding the core ball around the core ball. Hold down the thread rubber attached,
After the gripping claw and the holding claw are pulled out from between the core ball and the thread rubber, at least one of the thread winding rollers is driven to rotate to rotate the core ball, thereby winding the thread rubber around the core ball. Provided is a method of winding a wound ball, which is characterized by turning.

[0011] The present invention also provides a thread winding device for automatically winding thread rubber by the above-described thread winding method of the present invention.
When manufacturing a wound ball in which a cover is covered on a wound core in which a rubber thread is wound on a core ball, a thread winding device for winding the thread rubber on the core ball to obtain the thread wound core, which is close to each other and A plurality of bobbin rollers movable in the direction of separation and rotatably supported, holding a core ball between the respective bobbin rollers, and driving and rotating at least one of the bobbin rollers to rotate the core ball; And a plurality of grips for gripping the core ball at the tip of a forward and backward and rotatable arm disposed opposite to the thread winding roller. A core ball hand provided with a holding claw for fixing a winding start end of thread rubber on the surface of a core ball held between the claw and the gripping claw, and a winding start end of the thread rubber are grasped. With a thread rubber hand for guiding to the surface of the core ball held between the gripping claws To provide a winding apparatus of the wound golf ball characterized by Rukoto.

[0012]

According to the above-mentioned thread winding method of the present invention, a core ball grasped by a plurality of pinching claws is firstly arranged between a plurality of thread winding rollers, and the core of the rubber ball is fixed on the surface of the core ball by pressing the winding start end with a pressing claw. Then, the core rubber is rotated by one or more rotations together with the gripping claws and the holding claws, whereby one or more turns of thread rubber are wound from above the gripping claws and the holding claws. This allows
The thread rubber is wound around the core ball with the gripping claws and the holding claws sandwiched therebetween.

Next, the respective bobbin rollers are pressed against the surface of the core ball from above the thread rubber while avoiding the gripping claws and the pressing claws, whereby the core ball is held by the respective bobbin rollers, and the core ball is held. The rubber thread wound around the ball is held down, and the gripping claws and the holding claws are pulled out from between the core ball and the thread rubber. In this case, even if the gripping claw and the holding claw are pulled out from between the core ball and the thread rubber, the thread rubber wound on the surface of the core ball is sandwiched between each of the above-mentioned thread winding rollers and the surface of the core ball. The holding claws and the holding claws are kept wound around the core ball without falling off the surface of the core ball. As a result, the thread rubber becomes 1
The core ball wound around a few turns is held between the winding rollers.

At this time, it is preferable that the winding start end of the thread rubber is sandwiched between the core ball and the thread rubber wound around the core ball. By pressing the winding start end obliquely when pressing and fixing the core on the core ball with the holding claw, the winding start end can be easily fixed in such a form. As described above, since the thread rubber wound on the surface of the core ball is sandwiched between each of the winding rollers and the surface of the core ball, the winding start end is wound around the core ball and the core ball. Even if the thread rubber is not sandwiched between the thread rubber and the thread rubber, the thread rubber does not come off the core ball, and the thread rubber can be started to be satisfactorily wound.

[0015] With the core ball having the thread rubber wound one or several turns held between the thread winding rollers, at least one of the thread winding rollers is continuously supplied with the thread rubber. By driving and rotating the core ball,
The thread rubber is wound uniformly around the core ball to produce a wound core.

As described above, according to the thread winding method of the present invention,
Since the winding start end can be fixed to the core ball without using an adhesive or moisture, the winding start end can be fixed in a short time, and the core ball can be fixed without adversely affecting the winding device. It can be applied favorably to a solid center or a liquid center. Moreover, the winding start end of the thread rubber is guided to the surface of the core ball supported by the gripping claw, fixed to the surface of the core ball with the holding claw, and the core ball is rotated together with the gripping claw and the holding claw. The winding start end can be fixed by an extremely simple operation, and the winding operation can be performed by fixing the winding start end to the core ball easily and in a short time without complicated work. Furthermore, in this case, a thread rubber hand which grasps the winding start end of thread rubber and guides the thread rubber to the surface of the core ball by automatic control, and a core ball hand provided with the above-mentioned gripping claw and holding claw and capable of automatically controlling the operation of these claw members. By using the above, the work of fixing the winding start end can be easily automated.

The thread winding device of the present invention includes the thread rubber hand and the core feeding hand, and automatically performs a fixing operation and a winding operation of a thread rubber winding start end by the thread winding method of the present invention. The core ball is grasped by the gripping claws provided on the core ball hand, and the core ball is held between the thread winding rollers in a state of being separated from the respective thread winding rollers by a predetermined distance.The thread rubber hand is held on the surface of the core ball by the thread rubber hand. The winding start end of the thread rubber is guided, and the holding claw provided on the core ball hand is fixed by pressing the winding start end against the surface of the core ball, and in this state, the core ball hand rotates one or more turns. One or more turns of thread rubber are wound around the core ball from above the gripping claws and holding claws, and then the respective thread winding rollers are moved in a direction approaching each other, and pressed against the surface of the core ball from above the thread rubber. These thread winding rollers are cored with thread rubber. The core ball hand is retracted while holding the core ball, the gripping claw and the holding claw are pulled out from between the core ball and the thread rubber, and at least one of the thread winding rollers is driven and rotated. The rubber thread is automatically wound around the core ball by rotating the core ball.

As described above, according to the peg of the present invention,
According to the above-described thread winding method of the present invention, the fixing operation and the winding operation of the winding start end of the thread rubber can be automatically performed.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show a bobbin winding means 1 (FIG. 1) constituting a bobbin winding apparatus according to an embodiment of the present invention.
(A)), a core ball hand 2 (FIG. 1 (B)) and a thread rubber hand 3 (FIG. 1 (C)).
The bobbin winding device of the present embodiment including the core ball hand 2 and the rubber thread hand 3 is for manufacturing a bobbin core of a bobbin golf ball by the bobbin winding method of the present invention.

As shown in FIG. 1 (A), the bobbin winding means 1 has two cylindrical bobbing rollers 12, 12 on one surface of a main body 11 in which a driving mechanism and a control mechanism are housed, and a small diameter in the axial center. A drum-shaped winding roller 12a formed in a triangular shape is rotatably supported by being arranged in a triangular shape, and each of the winding rollers 12, 12, 12a is driven by a driving mechanism and a control mechanism in the main body 11. Are controlled so as to automatically move in a direction of approaching and separating from each other, and the cylindrical winding rollers 12 and 12 are attached to the main body 11.
It is designed to be automatically rotated by a drive mechanism and a control mechanism inside.

As shown in FIG. 1B, the core ball hand 2 is provided with three gripping claws 23, 2 at the tip of a round bar-shaped arm 21 driven by a drive motor 22 and rotated.
1 and 2 are provided so as to be openable and closable, and as shown in FIG. 2, as shown in FIG.
The gripping claws 23, 2
3 and 23 are opened and closed by automatic control such that their tip sides approach or separate from each other (FIG. 2).
Is closed), and the holding claw 24 swings in a direction of approaching and separating from the gripping claws 23, 23, 23 by automatic control (see a dashed line 24 'in FIG. 2).

The core ball hand 2 is driven by a drive cylinder 26 shown in FIG. 1B to advance and retreat along a guide rail 27 and to swing by a swing mechanism 28.

Although not specifically shown, the core ball hand 2 is provided with the bobbin rollers 12, 12, 1 of the bobbin winding means 1.
When the arm 21 moves forward, the gripping claws 23, 23, 23 and the pressing claws 24 are inserted between the winding rollers 12, 12, 12a (the central part of the triangle) and When the arm 21 is retracted, the gripping claws 23, 23, 23 and the pressing claws 24 are
2, 12 and 12a.
The core ball supplied from an appropriate core ball supply mechanism is gripped by the gripping claws 23, 23, 23 by the advancing / retracting operation of the arm 21 and the swing operation, and the bobbin roller 1
It can be inserted between 2, 12, 12a.

Further, the thread rubber hand 3 is shown in FIG.
As shown in the figure, the beak is opened and closed by automatic control, moves along the guide rail 31 in the x direction, is driven by the vertical cylinder 32, moves up and down in the y direction, and It is driven to move forward and backward in the z direction.

Although not shown, the thread rubber hand 3 is disposed to face the front surface of the main body 11 of the thread winding means 1, and moves in the x, y, and z directions to supply an appropriate thread rubber. The winding start end of the thread rubber is grasped from the portion, and the winding start end is guided between the thread winding rollers 12, 12, 12a.

Next, the operation of the peg will be described. When the thread rubber is wound around the core ball by this thread winding device to obtain a wound core of a wound golf ball, first, the core ball 4 supplied from the core ball supply means (not shown) is connected to the core ball hand 2.
The core ball 4 is gripped by the pinching claws 23, 23, 23 as shown in FIG.
The winding rollers 12, 12, 12a are arranged at a predetermined distance from each other between the winding rollers 2, 12, 12a.

Next, the winding start end of the thread rubber 5 supplied from the thread rubber supply means (not shown) is grasped by the thread rubber hand 3 and the thread rubber hand 3 is passed over the thread winding roller 12a. B), the winding start end of the thread rubber 5 is guided through the inside of the pressing claw 24 to the surface of the core ball 4 held between the thread winding rollers 12, 12, 12a.

In this state, as shown in FIGS. 4A and 4B, the pressing claw 24 is pressed against the surface of the core ball 4 from above the thread rubber 5, and the pressing claw 24 is Is pressed against the surface of the core ball 4 and fixed, and as shown in FIG.
By rotating the core ball hand 2, the gripping claws 23, 23, 23
By rotating the core ball 4 one or more rotations (two rotations in the figure) together with the holding claws 24, the gripping claws 23, 23, 2
The thread rubber 5 is wound one or more times (two in the figure) from above the holding claws 3 and the holding claws 24. Thus, the thread rubber 5 is wound around the core ball 4 with the gripping claws 23, 23, 23 and the holding claw 24 interposed therebetween. After fixing the end of the thread rubber 5 to the surface of the core ball 4 with the holding claw 24,
The thread rubber hand 3 opens the winding start end of the thread rubber 5 and retreats from the thread winding section.

Next, the yarn winding rollers 12, 12, 12
a in the direction of approaching each other, and as shown in FIG. 5 (A), these thread-wound rollers 12, 12, 12a are placed on the surface of the core ball 4 from above the thread rubber 5 by the gripping claws 23, 23. ,
By pressing in contact with each other while avoiding the pressing claw 23 and the pressing claw 24, the core balls 4 are held by the respective winding rollers 12, 12, 12a and the thread rubber 5 wound around the core balls 4 is pressed. As shown in (B), the core ball hand 2 is retracted to hold the gripping claws 24, 24, 24 and the holding claws 25.
Is withdrawn from between the winding rollers 12, 12, 12a,
The grip claws 24, 24, 24 and the holding claws 25 are pulled out from between the core ball 4 and the rubber thread 5. In this case, the gripping claws 23, 2
The thread rubber 5 wound around the surface of the core ball 4 can be removed from the core balls 4 and 12, and the core ball by pulling out the core balls 4 and the thread rubber 5 from the core balls 4 and 3, 23 and the holding claw 24. 4 with the gripping claws 23, 23, 23 and the holding claws 24 without falling off the surface of the core ball 4.
And is kept wound. As a result, the core ball 4 around which the thread rubber 5 has been wound one to several turns (two turns in the drawing) is held between the thread winding rollers 12, 12, 12a.

In the winding method of the present embodiment, as described above, the rubber thread 5 wound on the surface of the core ball 4 is applied to each of the winding rollers 12 and 1.
As shown in FIG. 6A, the winding start end of the thread rubber 5 is wound around the core ball and the core ball. 6B, the winding start end of the core ball 4 and the thread rubber 5 wound around the core ball 4 are formed. It does not matter even if it is not sandwiched between them. That is, according to the thread winding method of the present invention, even in the latter state (FIG. 6B), the thread rubber 5 does not come off the core ball 4 and the thread rubber 5 can be wound well. You can get started.

Then, the core ball 4 having the thread rubber 5 wound in one or several revolutions (two revolutions in the drawing) is wound onto the thread winding roller 1.
In a state where the core rubber 4 is continuously supplied and the rubber thread 5 is continuously supplied, the two core-shaped bobbin rollers 12, 12 are driven to rotate to rotate the core sphere 4, whereby the core sphere 4 is rotated. The thread rubber 5 is uniformly wound to produce a wound core. In this case, the winding method of the rubber thread 5 can be a conventionally known method such as a random winding method or a great circle winding method.
The winding operation of the thread rubber 5 can be performed by controlling the drive of the thread 12a.

As described above, according to the thread winding device and the thread winding method of this embodiment, the winding start end of the thread rubber 5 can be fixed to the core ball 4 without using an adhesive or moisture. It can be fixed to the core ball 4 in a short time, the adhesive and moisture do not adversely affect the winding device, and the core ball 4 can be applied well regardless of whether it is a solid center or a liquid center. obtain. In addition, the winding start end of the thread rubber 5 is guided to the surface of the core ball 4 supported by the gripping claws 23, 23, 23, and is fixed to the surface of the core ball 4 by the holding claws 24.
The winding start end can be fixed by an extremely simple operation of simply rotating the core ball 4 together with 3, 23, 23 and the presser claw 24, and the thread rubber can be easily and quickly shortened without complicated work. The winding operation can be performed by fixing the winding start end of 5 to the core ball 4. Moreover, according to the thread winding device of this embodiment, the thread rubber hand 3 which grasps the winding start end of the thread rubber 5 and guides the thread rubber 5 to the surface of the core ball 4 by automatic control, and the gripping claws 23, 23, 2
3 and a holding claw 24, and these claw members 2
Since the core ball hand 2 capable of automatically controlling the operations of 3, 23, 23, and 24 is provided, the work of fixing the winding start end can be completely automated.

It should be noted that the yarn winding method and the yarn winding device of the present invention
It is not limited to the above embodiment. For example, in the above embodiment, the operation of guiding the winding start end of the thread rubber 5 to the surface of the core ball 4 is performed by automatic control using the thread rubber hand 3, and the winding start end of the thread rubber 5 is held by the pressing claw 24 with the core ball 4. The operation of fixing the core ball 4 to the surface and the operation of rotating the core ball 4 together with the gripping claws 23 and the holding claws 24 and winding the rubber thread several times are automatically performed using the automatically controlled core ball hand 2. May be performed manually, and even in this case, the winding start end of the thread rubber 5 can be fixed to the core ball 4 without using an adhesive or moisture by an extremely easy operation as compared with the conventional method. it can. In addition, the above-mentioned thread winding rollers 12, 12, 12a,
Gripping claws 23, 23, 23, pressing claws 24, thread rubber hand 3
The number, shape, control method, and the like of these can be appropriately changed, and other configurations may be variously changed without departing from the gist of the present invention. Furthermore, the thread winding method and the thread winding device of the present invention are preferably used when manufacturing a wound core of a wound golf ball. A ball can be favorably applied to any application, and can be suitably used, for example, when obtaining a wound core of a baseball ball.

[0034]

As described above, according to the thread winding method of the thread wound ball of the present invention, the operation of fixing the winding start end of the thread rubber to the core ball can be reliably performed without using an adhesive or moisture. Since the fixing operation can be performed easily and reliably by a very simple operation, the winding operation of the thread rubber can be completely automated without causing various conventional problems.

Further, according to the wound ball winding apparatus of the present invention, the fixing operation and the winding operation of the winding start end of the thread rubber can be automatically performed according to the above-described wound method of the present invention.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing components constituting a peg according to an embodiment of the present invention, wherein (A) is a peg;
(B) is a core ball hand, and (C) is a thread rubber hand.

FIG. 2 is a partially enlarged side view showing a distal end portion of a core ball hand constituting the peg.

FIG. 3 is an explanatory view showing a first step in winding thread rubber around a core ball by the thread winding method of the present invention using the same thread winding device, wherein (A) is a schematic side view, and (B) is a schematic view. It is a front view.

FIG. 4 is an explanatory view showing a second step of the yarn winding method;
(A) is a schematic side view, (B) is a schematic front view, (C) is a schematic front view explaining operation | movement.

FIG. 5 is an explanatory view showing a third step of the yarn winding method.
(A) is a schematic front view, (B) is a schematic side view explaining operation | movement.

FIGS. 6A and 6B are schematic partial plan views showing different fixing modes of the rubber thread end fixed to the core ball by the thread winding method of the present invention. FIGS.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 thread winding means 2 core ball hand 3 thread rubber hand 4 core ball 5 thread rubber 12, 12 a thread roller 21 core ball hand arm 23 gripping claw 24 holding claw

Claims (2)

(57) [Claims] 1. A bobbin winding method for producing a bobbin ball in which a bobbin core is obtained by winding a bobbin rubber around a core ball when manufacturing a bobbin ball in which a bobbin core is formed by winding a bobbin rubber around a core ball. Gripping the core ball with a plurality of gripping claws, holding the core ball between the plurality of rotatable thread winding rollers at a predetermined distance from each of the thread winding rollers, and starting to wind thread rubber on the surface of the core ball. After fixing the ends by pressing the holding claws, the core ball is rotated one or more times together with the gripping claws and the holding claws in this state, so that one thread rubber is wound from above the gripping claws and the holding claws. The above-mentioned winding is performed, and then the respective bobbin rollers are pressed against the surface of the core ball from above the thread rubber while avoiding the gripping claws and the holding claws, thereby holding the core ball with the respective bobbin rollers and simultaneously attaching the core ball to the core ball. Hold down the wound rubber thread and press the gripper After pulling out the claws from between the core ball and the thread rubber, the thread rubber is wound around the core ball by driving and rotating at least one of the thread winding rollers to rotate the core ball. The method of winding a wound ball. 2. A bobbin winding device for producing a bobbin ball in which a bobbin core is obtained by winding a bobbin rubber around a core ball of a bobbin core with a cover covered by a bobbin core. A plurality of bobbin rollers supported in a rotatable manner so as to be movable toward and away from each other, holding a core ball between each bobbin roller, and driving and rotating at least one of the bobbin rollers to rotate the core. A bobbin winding means for winding the supplied rubber thread around the core ball by rotating the ball, and the core ball is gripped by the tip of a reciprocally movable and rotatable arm disposed opposite to the bobbin roller. A core ball hand provided with a plurality of gripping claws and a holding claw for fixing a winding start end of thread rubber on the surface of the core ball held between the gripping claws, and grasping the winding start end of the thread rubber, Thread rubber hand for guiding the winding start end to the surface of the core ball held between the gripping claws A thread winding device for a wound ball, comprising: